Piston-rod toggle mechanism



E. DUCHESNE.

PISTON ROD TOGGLE MECHANISM.

APPLICATION FILED n. 3. 1919. RENEWED SEPT. 2, 1920.

v 1,361,235. Patented Dec. 7,1920.

} I E I C- 'l *1 l I I l (w FI QZ l 4 i 6 7 ,/I i I Z 4 INVENTOR f am/wirrn reresswee re wgBe {it known {that I,,;;ERNES\THDUQHES1E, Subject -fng o Great vI3. i' t fl'e, and =1'esi-ding' in the city; and Districtfof- ;.Mon. treal, in the Province ofQuebeq, in the Do 1 minionof-Canada, ghafve g invented jfa, newand useful, Piston-Rod Toggle;Mechanism, of which the following ,is the. ,speeification. :Theinventionrelates;to piston1 ml ggle =n1echanisn1 asdescribedingthegpresent specia- J wfication andillustrateds'intheacoompanymg,1, v .1 c s r The pi ton rodlOfis screwthreaded into drawings that forrr 1, ;par-t;;of the same,

place are to effect economyin large :works 1 WhereJnumerOuS machines"are in operationwhich ,incl-ude a toggle-joint j, connection to j .1

;I .'place to: increase 'theioutputsof, factories by I r r H{eliminating the break-downs, of 1: machines em-ployin thistoggle-joint;andgenerally to :jprovide a simple and effi'cientg jdevice,

which maybeboth serviceable andd'iirable j, I j r H i a V 33 to completethe shaft'bearii'i'gjfwith the toggle members the crankshaft from thepiston; in the merit wfor rnanyuses,- 1,, I In the draw1ngs,,lf1gureLisa side' elevar '1 tion of the j oint inechanismremoved from 30 ,1Fig.

,, ofa cylinder piston,crankshaft, and joint I mechanism. i

-' Fig.3 is. a detailota piston rod includ I j j e 27, the" central rib36 o'f'said block 31 corthe pistons ofa pneumatic tool} 2 is alongitudinal ing one toggle joint member.

Figf l is a detail of a piston rod including the other toggle jointmember.

Fig. 5 is a detail .of the joint closure,

Fig. 6 is a side view of the detail shown I in Fig. 5. I

Fig. 7 is a side view of the detail shown in Fig. 4.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, the numerals l and 2 indicate the pistonshere shown as operating in the cylinders 3 and 4 set at a 90 angleinrelation to one another.

The pistons 1 and 2 have the inner ball sockets 5 and 6 which receivethe balls 7 and 8 and therewith form ball and socket joints,

said balls 7 and 8 being the finished integral ends of the piston rods 9and 10.

Thepiston rods have the threaded, outer ends 11 and 12 beyond theshoulders 13 and or nogeuatgpezsm emma ms'rousqp resen MncrumSpeciilcationor neuqrs ratene f pamm Dec," 1 e ual Kb. 250.4452 1Septctriiper 2,] i9;

[terminating the ledgesjsoi, '.l -,The block 31,, is formed to flclosfslotl29 an'dzterininates inthejed g ej "faces 32 fitting, onto theledges 30, [the inner surface she fv secti 8 ,1 i r edut'erjr r f rm dicorresp nd wit n continue nularlythe bate surface, of the I meinber 23ai ha thibe rin li u ff f ef 11 f35p Pl i i nn a bar s 't f t ei W ectinal view} l4 a dr ld .b i s I and: 1.1 t wane:

The piscpn rod Q is] S CreW th a {the 'shoulden'igj'bea ng theescentk'shap'ed] arms 19 one at a e ch i e re?! f rmin ei e iw crescentbearings "20, the horns) 21 of the crescent, being inwardlydrawn','jiilaking a ,wide j split ,in I bearing or opening 1 Theinvention/consists essentially in; the 1: i theito ggle member 23' andparticularly'into r-novel meansemployed for --fasteningthei1 to thecrank, of the" rank the shoulder 24;forming partwith the jourof the n hme ber h h lf se ti n? 29, jleadsim saidhalf s ction ,5

shaft bearing isfformed an thefsfirai ght slot be said b eekgfqrmiagthe;other halfsection fa'cif of, jute block a; is

theiciescent-shapedbearing sur' aeesff26 and responding with the centralrib 37 extender end into the",toggleinejmber 1 17, which ing from theshoulder 24 and continuing the same and turning between the bearings 20.

The washers 38 and 39 are introduced between the shoulders 13 and 14respectively and the shoulders 18 and 24 and the ends thereof turnedagainst the flat sides of the shoulders 18 and 24 and the flat sides 15and 16 of the piston rods.

It will now be seen that by the removal of the block an aperture is madethrough which the ,crank 40 is inserted and following this the block 31is replaced and the positions of the rods 9 and 10 reversed or of theshoulders into which said rods are screwed, as the rods are of courseattached to the pistons, in ordinary practice, then secured to thetoggle members.

In the operating positions of the rods, the

- innertogg 'abl c "the permanent split denoted by the space between thehorns of the crescent.

It may be possible to use this construction in some cases without ablock to close the inner toggle member and it may be consider- 1 thisdescription;

",WhatIclaim is: a I v 1. In a device of the, class described, a i

m1 connecting member,'a crank 1ournaled therein, a block closing in saidcrank and completing the "ournal bearing, an outer pivotal memberorming' a bearing for the aforesaid member and clos n in said bloc androds secured to said mem ers.

2. In a device of the class described, a pair of pistons, apair of rodssecured thereto, an .outer toggle member at the end of one of 1 saidrods and 'forming a journal bearing having a permanent openingthereinto, an]

e member journaled in'said outer toggle member and having a crankslotlead- F as fing thereinto, a bearing block completing thecrankbearing and forming aclosure for said slot and a'crank journaledin saidinner toggle.

, I 3. In a device of the class described,,a pair of pistons, a pair ofrods secured thereto, an outer to gle 'formlngl parallel and part. cir40 cular si e bearings av'ing a comparatively wide openin anged. in its-details forvarious uses wit out departingfrom the spirit of the in-.-vention,'so' long as such changes are within" the scope of the claimsfor-novelty following leading thereinto and at the end of one 0 saidrods,zan inner toggle se-- cured to the other rod and having si ebearingsurfaces journaled in said side bearings and a wide slot leadingthereinto, a block closing said slot and completing a crank bearing, anda crank journaled in said inner toggle. 4. In a device of the classdescribed, a pair I of pistons, a pair of rods securedthereto, an

outer toggle of substantiall crescent shape and rigid with one of sairods, an inner block c'ompletingthe crank bearing and'closing" theopening to'said inner toggle and turning wlthin said outer toggle in theoperating position, and a crank;

'5. In a deviceof he class described, a pair I of pistons, a pair ofrods secured-thereto, an

outer toggle havin parallelbearing members of s'ubstantia ly crescentshape and forming a comparatively wide opening between the horns of the"crescent, an nner f toggle andia' removable block completln a journalbearing for a crank and toget er journaled in said outer toggle andentered prior to the insertion of the block through said wide opening,and a crank. V "6. In a device of-the class described, a pair ofpistons, a pair of rods secured to said pistons, an outertoggle at theend of one of toggle secured to the other pistonflrod and iorminga'h'alf section of the crank bearing andjournaled in said outer toggle,a bearing said piston rods and having. parallel part qc'ircular' bearingmembers therefrom form- I ing an opening for the insertion of an inner"toggle, an' inner toggle having a shoulder screw threaded to the otherpiston rod and a centrally slotted ring-portion and a block I closing.saidi slot and completing a crank bearing and side bearingsurfaces'journaled in the said outer toggle, and a cr'ank.- I j M Signedat the city of iMontreal, Quebec, Canad'a, this 27" day of ebruary,1919.

. NEsrDi GHESN a a l t, 0)

